0.022 mm temperature-tolerance decoration foil and preparation method thereof
A technology of temperature resistance and mass fraction, applied in the field of aluminum foil processing, can solve the problems of unstable mechanical properties of aluminum foil, material softening by heat, deformation and wrinkling of aluminum foil, etc., to improve alloy strength, improve metal temperature resistance, and increase recrystallization temperature. Effect
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[0022] A method for preparing a 0.022mm heat-resistant decorative foil, the mass fraction of alloy elements in the 0.022mm thick decorative foil is mainly composed of the content in Table 2, and the process is as follows:
[0023] 1. The chemical composition is described in Table 2:
[0024] Table 2 chemical composition
[0025]
[0026] 2. Other quality indicators of cast-rolled coils meet the requirements of YS / T90-2002 aluminum and aluminum alloy cast-rolled strip standards;
[0027] 3. Production process: 6.0~10.0mm (cast rolling plate)→cold rolling to 0.44~0.85mm→intermediate annealing (H22 state)→cold rolling to 0.28~0.60mm→foil rolling to finished product thickness (0.022mm) → Slitting.
[0028] 4. Intermediate annealing process system
[0029] Furnace gas temperature control method is used for annealing, that is, furnace is installed at ≤100°C, heated for 1.5 hours to 350-450°C, and kept for 5-15 hours; cooled for 0.5 hours to 320-380°C, kept for 5-15 hours, and ...
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